CN100379067C - Fuel cell system - Google Patents

Fuel cell system Download PDF

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Publication number
CN100379067C
CN100379067C CNB200510116538XA CN200510116538A CN100379067C CN 100379067 C CN100379067 C CN 100379067C CN B200510116538X A CNB200510116538X A CN B200510116538XA CN 200510116538 A CN200510116538 A CN 200510116538A CN 100379067 C CN100379067 C CN 100379067C
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CN
China
Prior art keywords
fuel cell
cell system
separated region
fuel
hydrogen
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Expired - Fee Related
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CNB200510116538XA
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Chinese (zh)
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CN1755971A (en
Inventor
金周龙
林炫廷
韩知成
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Samsung SDI Co Ltd
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Samsung SDI Co Ltd
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Publication of CN1755971A publication Critical patent/CN1755971A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04208Cartridges, cryogenic media or cryogenic reservoirs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/1007Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/10Fuel cells with solid electrolytes
    • H01M8/1009Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

A fuel cell system includes at least one electricity generating element to generate electrical energy through an electrochemical reaction of hydrogen and oxygen, and a reaction source supplier adapted to connect to the electricity generating element and to provide a hydrogen-containing fuel and oxygen-containing air to the electricity generating element. The reaction source supplier includes a first divided region for storing compressed air, a second divided region for storing the fuel, and a storage region having an elastic partition adapted to divide the adjacent first and second divided regions.

Description

Fuel cell system
Technical field
The present invention relates to a kind of fuel cell system.More particularly, the present invention relates to a kind of fuel cell system that the reaction source feedway of hydrogen is provided with oxidant that comprises.
Background technology
Fuel cell is the electricity generation system that the electrochemical redox reaction by oxygen and fuel produces electric energy, and wherein fuel for example is hydrogen or as the alkyl material of methyl alcohol, ethanol, natural gas and so on.
Can be divided into phosphatic type, fused carbonate type, solid oxide type, polymer electrolyte type or alkali type according to the electrolyte classification fuel cell that uses.Though these dissimilar various fuel cells are with identical basic principle work, they are being different aspect the electrolyte of fuel type, working temperature, catalyst and use each other.
Recently, developed polymer electrolyte film fuel cell (PEMFC).PEMFC has the power characteristic that is better than traditional fuel cell, low working temperature, starts and response characteristic faster.Given this, PEMFC is of wide application, and for example can be used as the compact power of automobile, as the distribution power supply of house and public building with as the Miniature Power Unit of electronic device.
PEMFC is made up of battery pile, reformer, tanks and petrolift basically.Battery pile forms the main body of PEMFC, and petrolift offers reformer with the fuel that stores in the tanks.The reformer fuel reforming is to produce hydrogen and to give battery pile with hydrogen supply.In addition, in PEMFC, will be stored in fuel-pumping in the tanks to reformer by petrolift, the reformer fuel reforming is to produce hydrogen then.Hydrogen and air are provided for battery pile by pump separately.Battery pile produces electric energy by the electrochemical reaction of oxygen in hydrogen and the air.
Traditional fuel cell system comprises that the supply of fuel that will be stored in respectively in the tanks is to reformer with the pump of air supply to battery pile.Increase owing to be used to drive the secondary power of these pumps, so that the energy efficiency deterioration of whole system.Therefore early stage fuel cell system also needs to be used to install the space of this class pump, is difficult to make the whole system size to reduce and makes its compactness.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of fuel cell system that comprises the feedway that is used to provide fuel and air, can reduce the required additional source of energy of this system of driving whereby, and can make the size of whole system littler, compacter.
The technical scheme that solves described problem is to make fuel cell system of the present invention comprise that at least one is suitable for producing by the electrochemical reaction of hydrogen and oxygen the generating element and the reaction source feedway of electric energy, and this device is suitable for being connected with generating element and hydrogen-containing fuel being provided and containing the oxygen air to generating element.Described reaction source feedway comprises first separated region that is used for storing compressed air, be used for second separated region of storage of fuels and comprise the storage area of the elastic part that is suitable for separating first and second separated regions that adjoin.
Elastic part has membrane configuration, and storage area can comprise the fuel cassette that is suitable for removably being attached to second separated region.
In described fuel cell system of the present invention, the reaction source feedway can comprise being suitable for being connected on first separated region and to first separated region supplies compressed-air actuated compressor.The compressor and first separated region can be connected to each other by first supply line.
In described fuel cell system of the present invention, the reaction source feedway can comprise that also being suitable for being connected to storage area passes through the chemical catalysis endothermic reaction produces hydrogen and hydrogen supply given generating element from fuel reformer.
In described fuel cell system of the present invention, reformer can comprise by the heating source of the generation of the catalytic oxidation between fuel and oxygen heat energy, produce the reforming activity district of hydrogen and the carbon monoxide reduction zone that at least one preferential catalytic oxidation by carbon monoxide reduces carbonomonoxide concentration in the hydrogen by absorbing heat energy from fuel.
In this fuel cell system, second separated region is connected with heating source by second supply line, and first separated region is connected with heating source by the 3rd supply line, and second separated region is connected with the reforming activity district by the 4th supply line.First separated region reduces the zone by the 5th supply line and carbon monoxide and is connected, and carbon monoxide reduces the zone and is connected with generating element by the 6th supply line, is connected with generating element by the 7th supply line with first separated region.
A plurality of generating elements can be piled up to form battery pile.
As mentioned above, this fuel cell system of the present invention can be polymer electrolyte film fuel cell (PEMFC) or direct oxidation fuel cell (DOFC).
The elastic part of reaction source feedway is by constituting by the material of compressed-air actuated pressure strain.
Fuel cell system of the present invention comprises by single compressor to the reaction source feedway of battery pile fuel supplying with generating.Therefore, the additional source of energy consumption that is used to drive whole system can be reduced, and the energy efficiency of system can be further improved.In addition, because adopt single compressor also can reduce size and make system compact.
Description of drawings
Can make more fully the present invention by the detailed description of the present invention being carried out below in conjunction with accompanying drawing and to estimate, and can make many attendant advantages of the present invention become more clear and obvious, identical in the accompanying drawings Reference numeral is represented same or analogous element.In the accompanying drawing:
Fig. 1 is the fuel cell system general structure schematic diagram of an embodiment of the present invention;
Fig. 2 is the decomposition diagram of battery pile structure shown in Figure 1;
Fig. 3 is the perspective view of memory area configuration in the reaction source feedway shown in Figure 1;
Fig. 4 is the schematic diagram of memory area configuration and function in the reaction source feedway shown in Figure 3;
Fig. 5 is the decomposition diagram of the fuel cell system reformer structure of an embodiment of the present invention;
Fig. 6 is the decomposition diagram of memory area configuration of the fuel cell system of another execution mode of the present invention.
Embodiment
To be described in detail embodiments of the present invention with reference to the accompanying drawings hereinafter.Certainly, the present invention can have multiple remodeling and equivalent structure, and should be understood that the present invention is not limited to described those execution modes.
Fig. 1 is the schematic diagram of the fuel cell system general structure of an embodiment of the present invention, and Fig. 2 is the decomposition diagram of battery pile structure shown in Figure 1.
Referring to accompanying drawing, the fuel cell system of this execution mode of the present invention 100 adopts polymer electrolyte film fuel cells (PEMFC), and it is by reformation hydrogen-containing fuel generation hydrogen, then the which generate electricity by electrochemical reaction by hydrogen and oxidant.
The fuel that is used to generate electricity in fuel cell system 100 can be the fuel of any kind, for example methyl alcohol, ethanol or natural gas etc., and they can be liquid or gas.Yet, for convenience's sake, in the description of specification fuel is defined as liquid below.
Fuel cell system 100 can use the oxygen that is stored in the independent memory cell or oxygen containing air as oxidant.Yet, hereinafter, be described as an example with the latter.
According to present embodiment, fuel cell system 100 comprises that the electrochemical reaction by hydrogen and oxidant produces the generating element 11 of electric energy and produces hydrogen and hydrogen and air are supplied with the reaction source feedway 50 of generating element 11 from hydrogen-containing fuel.
Form generating element 11 by membrane electrode assembly (MEA) 12 is set between two dividing plates 16, form and have the battery pile 10 of battery pile structure by a plurality of minimum units are set then as the minimum unit that is used to generate electricity.Battery pile 10 can be added and be comprised and be used to locate a plurality of generating elements 11 so that it is at the battery pile 10 outermost end tight pressing plate 13 and 14 of adjacency each other.But the battery pile 10 of the fuel cell of present embodiment is by the outermost end at generating element 11 dividing plate 16 to be set to form to replace using independent pressing plate 13 and 14 to work to compress generating element 11.Otherwise it is identical rather than in order closely to arrange a plurality of generating elements 11 also pressing plate 13 and 14 can be formed inherent function with dividing plate 16, and this will be described below.
The both sides of membrane electrode assembly 12 have anode and negative electrode, to play oxidation and to go back protohydrogen and airborne oxygen.Dividing plate 16 is by being formed on the gas passage supply of hydrogen and the air of membrane electrode assembly 12 both sides, and dividing plate also play a part the to be connected in series conductor of anode and negative electrode.
Pressing plate 13 has to the first import 13a of the hydrogen channel supply of hydrogen of dividing plate 16 with to the second import 13b of the air duct of dividing plate 16 supply air.Another pressing plate 14 has the first outlet 14a and the second outlet 14b, first outlet is used to be released in remaining hydrogen after the anode place reaction of membrane electrode assembly 12, second outlet be used to be released in moisture that the reduction reaction of the oxygen of hydrogen and the negative electrode by membrane electrode assembly 12 produces react after remaining air.
Fig. 3 is the structure perspective view of storage area in the reaction source feedway shown in Figure 1, and Fig. 4 is a schematic diagram of explaining the 26S Proteasome Structure and Function of reaction source feedway shown in Figure 3.
With reference to figure 3 and 4, will the reaction source feedway 50 that be used in the battery pile 10 of this execution mode of the present invention to generating element 11 supply hydrogen and air be described in more detail.
Shown in Fig. 1-4, according to present embodiment, reaction source feedway 50 is installed into generating element 11 and links to each other, and it produces hydrogen from hydrogen-containing fuel, and hydrogen and air are supplied to generating element 11 together.
Reaction source feedway 50 comprises storage area 51 and the reformer 30 with the separation inner space that is used for difference storing compressed air and hydrogen-containing fuel, reformer 30 is connected with battery pile 10 with storage area 51 and is fixing, is used for producing hydrogen and hydrogen being supplied with battery pile 10 from fuel.
Storage area 51 is the airtight containers with inner space of predetermined, and it comprises first separated region 52 of storing compressed air and second separated region 53 of storage of fuels.
The elastic part 54 of the inboard of first and second separated regions 52 and 53 by being installed in storage area 51 is separated.Elastic part 54 approximately is installed in the central authorities of storage area 51, moves back and forth between first and second separated regions 52 and 53 to prevent material.And elastic part 54 is formed by deformable and flexible material, and therefore, when preset air pressure being provided for first separated region 52, owing to provide compressed air to its inner space, this elastic part can be towards 53 bendings of second separated region.Owing to be stored in the compressed-air actuated pressure in first separated region 52, make elastic part 54 flexibly be stored in fuel in second separated region 53 towards the inboard distortion and the release of second separated region 53.Can adopt barrier film as elastic part 54.
By using compressed-air actuated pressure first separated region 52 can make elastic part 54 strains, simultaneously to reformer 30 and battery pile 10 supply compressed air.In addition, first separated region 52 has and is used for to its inner space supply compressed-air actuated inlet 52a and is used for compressed air is discharged into three outlet 52b, the 52c and the 52d of external container.
In addition, second separated region 53 can store from the fuel of independent tanks (not shown) and the air pressure by first separated region, 52 inboards to reformer 30 fuel supplying.Second separated region also has two first and second outlet 53b and the 53c that is used for being discharged into to the inlet 53a that wherein imports fuel and the fuel that is used for being stored in its inner space external container.
Reaction source feedway 50 also has can be to the compressed-air actuated compressor 55 of first separated region, 52 supplies of the storage area 51 with said structure.According to the structure and the operation of compressor, compressor 55 can be multiple pattern, for example, rotates and compress spirally screw air compressor with pivot direction flow air in the opposite direction as a pair of two recessed rotors and convex rotor; The turboblower of a plurality of impeller high speed rotating; Or reciprocating motion of the pistons compressed air makes it to flow into the reciprocating piston air compressor machine in the cylinder.Certainly, compressor 55 is well-known in the association area, is not further described in this manual.Compressor 55 is connected to the inlet 52a of first separated region 52 by first supply line 91.
In addition, reformer 30 comprises that the catalytic oxidation that is generally used for by fuel and air produces the heating source 31 of heat energy, utilizes heat energy to produce the reforming reaction zone 32 of hydrogen by the steam reforming catalytic reaction from fuel and is used to reduce the carbon monoxide that is included in the carbonomonoxide concentration in the hydrogen and reduces regional 33 and 34.
Carbon monoxide reduces zone 33 and 34 and can comprise by water gas shift (WGS) catalytic reaction and additionally produce hydrogen and main first carbon monoxide that is included in the carbonomonoxide concentration in the hydrogen that reduces reduces zone 33 and preferred carbon monoxide oxidation (PROX) the catalytic reaction secondary by hydrogen and air and reduces by second carbon monoxide that is included in the carbonomonoxide concentration in the hydrogen and reduce zone 34.
The carbon monoxide of heating source 31, reforming reaction zone 32 and reformer 30 reduces zone 33 and 34 and can separately form, to have cylindric and to connect by pipeline.
Fig. 5 is the decomposition diagram of the reformer that is used for fuel cell system 30 of an embodiment of the present invention, wherein, heating source 31, reforming reaction zone 32 and carbon monoxide being reduced zone 33 and 34 forms to have and is used to make fuel tabular from piling up of flowing through therebetween.
Reformer 30 is by reducing zone 33 and pile up second carbon monoxide and reduce zone 34 and form below heating source 31 stacking gradually reforming reaction zone 32 and first carbon monoxide above the heating source 31.
More particularly, as shown in drawings, if with the first substrate 31a as benchmark, by 33a at the bottom of 32a and the 3rd reactive group at the bottom of stacking gradually second reactive group above the 31a at the bottom of first reactive group and at the bottom of the 4th reactive group that piles up below the 31a at the bottom of first reactive group 34a form reformer.In addition, cover plate 41 additionally can be combined in the top of 33a at the bottom of outmost the 3rd reactive group that places reformer 30.
Then, reformer 30 has and can make fuel flow to 31a, 32a at the bottom of each reactive group, 33a and the lip-deep passage 31c of 34a, 32c, 33c and 34c.Has the catalyst layer (not shown) on the inner surface of passage 31c, 32c, 33c and 34c.
Reformer 30 links to each other with storage area 51, and wherein, the heating source 31 of reformer 30 is connected respectively to first and second separated regions 52 and 53 of storage area 51.More particularly, heating source 31 is connected to the first outlet 53b of second separated region 53 by second supply line 92, and is connected to the first outlet 52b of first separated region 52 by the 3rd supply line 93.By the 4th supply line 94 the reforming reaction zone 32 in the reformer 30 is linked to each other with second separated region 53, more particularly, 53c links to each other with its second outlet.In addition, by the 5th supply line 95 second carbon monoxide in the reformer 30 is reduced zone 34 and link to each other, more particularly, second export 52c and link to each other with it with first separated region 52.
On the other hand, by the 6th supply line 96 second carbon monoxide is reduced zone 34 and link to each other with the first inlet 13a of battery pile 10, the 3rd outlet 52d with first separated region 52 links to each other with the second inlet 13b of battery pile 10 by supply line 97.Each zone of connection storage area 51 and reformer 30 and each supply line of battery pile 10 have the valve 99 of optionally opening and closing.By being installed in the controller (not shown) adjustable gate 99 on the valve discretely.
According to another embodiment of the present invention, fuel cell system 100 also can select to adopt the direct oxidation fuel cell method, wherein, and can be by directly generating electricity to battery pile 10 fuel supplying.Different with polymer electrolyte fuel cells, direct oxidation fuel cell does not need reformer 30.Therefore, direct oxidation fuel cell is formed to have with the second inlet 13b of battery pile 52 and links to each other, is used to supply first separated region 52 of air, and links to each other, is used for second separated region 53 of supply of hydrogen with the first inlet 13a of battery pile 10.
Further describe the direct oxidation fuel cell that this execution mode makes according to the present invention below.
At first, to the liquid hydrogen-containing fuel of second separated region, 53 inboard injections, be compressed to the air of its inner space then by compressor 55 to 52 supplies of first separated region by first supply line 91.
Afterwards, because compressed-air actuated pressure, the inner space of second separated region 53 of the barrier film 54 that is installed in storage area 51 inboards in the storage area 51 flexibly bends to the predetermined extent of " X " shown in the image pattern 4, and offers the heating source 31 of reformer 30 by the fuel that second supply line 92 will be stored in second separated region, 53 inboards.In other words, because because the fuel of expansion in second separated region 53 of elastic part 54 is extruded, fuel can be provided for the heating source of reformer 30 by second supply line 92.Simultaneously, be stored in compressed air in first separated region 52 is provided for reformer 30 by the 3rd supply line 93 heating source 31.Then, by the oxidation catalysis reaction of fuel and air, heating source 31 produces the reaction heat with predetermined temperature.Compressor 55 is in continuous running to supply compressed-air actuated state to the inner space of first separated region 52.
Next, the fuel that will be stored in second separated region, 53 inboards by the 4th supply line 94 offers the reforming reaction zone 32 of reformer 30.Owing to be installed in of the inner space bending of the elastic part 54 of storage area 51 inside by means of compressed-air actuated pressure in first separated region 52, therefore the fuel in second separated region 53 can be offered reforming reaction zone 32 to second separated region 53.Then, reforming reaction zone 32 absorbs the heat energy that is produced by heating source 31, and utilizes heat energy to produce hydrogen by the steam reforming catalytic reaction from fuel.That is to say that because fuel decomposes by the steam reforming catalytic reaction, reforming reaction zone 32 produces the hydrogen that contains amounts of carbon dioxide and hydrogen.Its also produce contain a small amount of carbon monoxide hydrogen as byproduct.
Then, the hydrogen that will contain a small amount of carbon monoxide offers first carbon monoxide and reduces zone 33.
First carbon monoxide reduces zone 33 and produces hydrogen in addition by water gas shift (WGS) catalytic reaction, and this reaction mainly is a contained carbonomonoxide concentration in the reduction hydrogen.
Subsequently, this strand hydrogen is offered second carbon monoxide reduce zone 34, the compressed air that will be stored in first separated region, 52 inside by the 5th supply line 95 is also supplied with second carbon monoxide and is reduced zone 34 simultaneously.React second carbon monoxide reduction zone 34 by the preferred catalytic of hydrogen and air and can reduce carbonomonoxide concentration contained in the hydrogen, and pass through the 6th supply line 96 generating element 11 in these hydrogen supply battery pile 10.
At last, will be stored in compressed air in first separated region 52 of storage area 51 by above-mentioned steps and offer generating element 11 in the battery pile 10.
Then, by the hydrogen channel of dividing plate 16 hydrogen is offered the anode of membrane electrode assembly 12.Air is offered the negative electrode of membrane electrode assembly 12 by the air duct of dividing plate 16.
Next, hydrogen is oxidized at the anode place, produces electronics and proton.Proton moves to negative electrode by electrolytic thin-membrane, but electronics is not by electrolytic thin-membrane but moves to the negative electrode of membrane electrode assembly 12 by dividing plate 16, produces electric current, and also produces water and hotwork is a byproduct.
On the other hand, Fig. 6 is the decomposition diagram of storage area in the fuel cell system of another execution mode of the present invention.
According to this execution mode of the present invention, storage area 151 comprises first separated region 152 of storing compressed air and stores second separated region 153 of above-mentioned fuel.First and second separated regions 152 and 153 separate by the elastic part 154 that is installed in storage area 151 inboards.Elastic part 154 roughly is installed in the central authorities of storage area 151 inner spaces, flows back and forth between first and second separated regions 152 and 153 to prevent material.
According to this execution mode of the present invention, second separated region, 153 1 side openings are to be contained in fuel cassette 130 wherein.Fuel cassette 130 has can be fixed to storage area 151 and can be with its structure that unloads from this storage area, so as can to use storage in advance fuel and needn't be from independent tanks fuel supplying.
Fuel cassette 130 has elastic part 154 corresponding another elastic parts 134 with storage area 151.These elastic parts 134 and 154 are made of flexible and deformable material, so that when first separated region 152 provided compressed air and produces preset air pressure, they can be towards the inner space bending of second separated region 153.By being stored in compressed-air actuated pneumatic elasticity part 134 and 154 the flexibly bendings of inner space in first separated region 152, enable to realize discharging the function that is stored in the fuel in second separated region 153 towards second separated region 153.Can be with barrier film as elastic part 134 and 154.
According to an embodiment of the present invention, fuel cell system comprises by single compressor to the reaction source feedway of battery pile fuel supplying with generating.Therefore, the additional source of energy consumption that is used to drive whole system can be reduced, and the energy efficiency of system can be further improved.
Unlike the prior art, fuel system of the present invention does not comprise a plurality of pumps and adopts single compressor, thereby can reduce size and make system compact.
Though invention has been described in conjunction with the execution mode of practical examples; but be to be understood that; the invention is not restricted to disclosed execution mode, otherwise the present invention should be contained design and various remodeling in the protection range and the equal conversion that is included in claims.

Claims (17)

1. fuel cell system comprises:
At least one is suitable for producing by the electrochemical reaction of hydrogen and oxygen the generating element of electric energy;
Be suitable for connecting described generating element and provide hydrogen-containing fuel and the reaction source feedway that contains the oxygen air to described generating element, this reaction source feedway comprises storage area,
Wherein said storage area comprises:
Be suitable for first separated region of storing compressed air;
Second separated region that adjoins with first separated region that is suitable for storage of fuels; With
Be suitable for separating the elastic part of described first and second separated regions that adjoin.
2. fuel cell system as claimed in claim 1, wherein, described elastic part comprises membrane configuration.
3. fuel cell system as claimed in claim 1, wherein, described storage area comprises the fuel cassette that is suitable for removably being attached to described second separated region.
4. fuel cell system as claimed in claim 1, wherein, described reaction source feedway comprises and is suitable for connecting described first separated region and provides compressed-air actuated compressor to described first separated region.
5. fuel cell system as claimed in claim 4 wherein, also comprises being suitable for first supply line that described compressor is linked to each other with described first separated region.
6. fuel cell system as claimed in claim 1, wherein, described reaction source feedway also comprises and is suitable for linking to each other with described storage area, produces hydrogen and with the reformer of described hydrogen supply to described generating element from fuel by the chemical catalysis endothermic reaction.
7. fuel cell system as claimed in claim 6, wherein, described reformer comprises:
Be suitable for producing the heating source of heat energy by the catalytic oxidation between fuel and the oxygen;
Be suitable for by absorbing heat energy produces hydrogen from fuel reforming activity district; With
At least one is suitable for reducing by the carbon monoxide preferential catalytic oxidation carbon monoxide reduction zone of carbonomonoxide concentration contained in the hydrogen.
8. fuel cell system as claimed in claim 7 wherein, also comprises being suitable for second supply line that described second separated region with described storage area links to each other with the described heating source of described reformer.
9. fuel cell system as claimed in claim 8 wherein, also comprises being suitable for the 3rd supply line that described first separated region with described storage area links to each other with the described heating source of described reformer.
10. fuel cell system as claimed in claim 9 wherein, also comprises being suitable for the 4th supply line that described second separated region with described storage area links to each other with the described reforming activity district of described reformer.
11. fuel cell system as claimed in claim 10 wherein, comprises that also described first separated region that is suitable for described storage area reduces the 5th supply line that the zone links to each other with the described carbon monoxide of described reformer.
12. fuel cell system as claimed in claim 11 wherein, comprises that also the described carbon monoxide that is suitable for described reformer reduces the 6th supply line that the zone links to each other with described generating element.
13. fuel cell system as claimed in claim 1 wherein, also comprises being suitable for the 7th supply line that described first separated region with described storage area links to each other with described generating element.
14. fuel cell system as claimed in claim 1 wherein, piles up a plurality of described generating elements and forms battery pile.
15. fuel cell system as claimed in claim 1, wherein, this fuel cell system is the polymer electrolyte film fuel cell system.
16. fuel cell system as claimed in claim 1, wherein, this fuel cell system is the direct oxidation fuel cell system.
17. fuel cell system as claimed in claim 1, wherein, described elastic part comprises the material by means of compressed-air actuated pressure strain.
CNB200510116538XA 2004-09-07 2005-09-07 Fuel cell system Expired - Fee Related CN100379067C (en)

Applications Claiming Priority (2)

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KR71155/04 2004-09-07
KR1020040071155A KR100590038B1 (en) 2004-09-07 2004-09-07 Fuel cell system and fuel supply apparatus

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CN100379067C true CN100379067C (en) 2008-04-02

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KR20060080385A (en) * 2005-01-05 2006-07-10 삼성에스디아이 주식회사 Fuel cell system, reformer, reaction substrate and manufacturing method of the reaction substrate
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